#pragma warning disable 108
using System;
using System.Runtime.InteropServices;
using System.Collections.Generic;
using Cephei;
using Cephei.Generic;
using Cephei.QL.Math;
namespace Cephei.QL.Methods.Finitedifferences
{
     // <summary> 
	// ! The differential operator \f$ D_{-} \f$ discretizes the first derivative with the first-order formula \f[ \frac{\partial u_{i}}{\partial x} \approx \frac{u_{i}-u_{i-1}}{h} = D_{-} u_{i} \f]  \ingroup findiff
	// </summary>
    [Guid ("C974AD42-F380-4680-9DD8-EE55C34E0FA1"),ComVisible(true)]
	public interface IDMinus : Cephei.QL.Methods.Finitedifferences.ITridiagonalOperator
	{
		///////////////////////////////////////////////////////////////
        // Methods
        //
    }

    // <summary> 
	// ! The differential operator \f$ D_{-} \f$ discretizes the first derivative with the first-order formula \f[ \frac{\partial u_{i}}{\partial x} \approx \frac{u_{i}-u_{i-1}}{h} = D_{-} u_{i} \f]  \ingroup findiff Factory
	// </summary>
   	[ComVisible(true)]
    public interface IDMinus_Factory // : Collection_Factory<IDMinus, ICell<IDMinus>>
    {
        ///////////////////////////////////////////////////////////////
        // Factory methods
        //
        
	    IDMinus Create (UInt64 gridPoints, Double h);
    }
}

